Stock Transactions and Unit Redemptions - Share Repurchases of Class A Common Stock (Detail) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended						3 Months Ended
	Feb. 05, 2025	Mar. 31, 2025	Feb. 28, 2025	Jan. 31, 2025	Mar. 31, 2024	Feb. 29, 2024	Jan. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Class of Stock [Line Items]
Total Number of Shares Repurchased (in shares)		13,000	0	3,171,000	1,055,000	6,586,000	3,609,000	3,184,000	11,250,000
Weighted-Average Price Paid per Share (in dollars per share)		$ 9.35	$ 0	$ 9.36	$ 8.23	$ 7.02	$ 6.95	$ 9.36	$ 7.11
Approximate Dollar Value of Shares That Could Be Repurchased Under the Program		$ 326,899			$ 264,565			$ 326,899	$ 264,565
Aggregate purchase price of Class A common stock								$ 23,125	$ 68,624
Shares withheld to satisfy tax liabilities (in shares)								700,000	1,400,000
Weighted-average price of shares withheld for tax liabilities (in dollars per share)								$ 9.06	$ 7.99
Class A Common Stock
Class of Stock [Line Items]
Total Number of Shares Repurchased (in shares)								2,444,829	9,820,280
Approximate Dollar Value of Shares That Could Be Repurchased Under the Program		$ 326,900						$ 326,900
Stock repurchased during period (in shares)								3,200,000	11,200,000
Aggregate purchase price of Class A common stock								$ 29,800	$ 80,000
Stock repurchased, weighted average price (in dollars per share)								$ 9.36	$ 7.11
Shares withheld to satisfy tax liabilities (in shares)	700,000
Share-based payment arrangement, decrease for tax withholding obligation								$ 8,500	$ 11,000
Restricted Shares
Class of Stock [Line Items]
Share-based payment arrangement, decrease for tax withholding obligation								$ 6,700	$ 11,400